Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026
San Diego → Boston via Houston: arrives on time 46%
-
11:58 SAN → 17:25 IAHUA 2237 · United · 3h 27m · 79% on time, 0.3% cancelled
-
50m layover in Houston (IAH) · 45 min minimum on one ticket
-
18:15 IAH → 23:19 BOSUA 521 · United · 4h 04m · 68% on time, 0.0% cancelled
Total trip 8h 21m, scheduled departure to arrival (Boston is 3 h ahead of San Diego). Times are local. Both flew on 41 of the last 56 days.
Makes the connection69%The first flight arrived more than 5 minutes late on 31% of the days it flew: too late for the 45-minute minimum connection on a 50m layover.
Arrives on time46%First flight not cancelled (0.3% are) × connection made (69%) × second flight not cancelled (0.0% are) and within 15 minutes (68%).
Total trip8h 21mSAN 11:58 to BOS 23:19, layover included
Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.
Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.